Busstee op vapob-lamps



BUTLER, HORSFORD L SMITH.

Vapor Lalmp.l

No. 27,346. Patented March 6, 1860.

UNITED sTA'rEs Parana onirica'.

J. L. BUTLER, Vv'. S. HOSFORD, AND D. V. SMITH, OF' BROOKLYN, NE\V YORK.

BURNER OF VAPOR-LAMPS.

Specification of Letters Patent No. 27,846, dated March 6, 1860.

T 0 all whom it 'may concern:

Be it known that we, JAMES L. BUTLER, WILLIAM S. HosroRD, and D. )WALTER SMITH, of Brooklyn, Kings county, and State of New York, have invented a new and improved construction of vapor-lamp burn ers for burning the various burning fluids supplied in the market, and especially the mixtures of alcohol and camphene or alcohol and spirits of turpentine, of which invention we declare the following to be a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification.

The nature of the invention consists in the construction and arrangement of the parts involved in vaporizing the fluid used for illumination as hereinafter more particularly described.

In the drawings herewith accompanying Figure l, is an elevation in section of the apparatus. 2, a burner tube the jacket and heaters being removed. 3 the jacket and heaters detached.

A is the jacket received on the burner. B, B, the heaters. C, the burner tube.

D is a chamber around Vthe lower part of the wick tube filled with a composition which is a non-conductor of heat. In the present case it is a mixture of cork and sulfur, patented some years since by Mr. Gilbert, and is used in the present application to prevent the heat from communicating from the burner to the reservoir of liquid.

E represents the wick tube received into the burner tube.

F represents the support for the lampshade. (a, 60,) represent expansions, on the upper part of the sides of the acket for receiving the shank part of the heaters, B.

(m) represents the vapor chamber of the burner tube which is increased by screwing up the burner part or rather by screwing down the wick tube and diminished the opposite movement of the screw which also increases or diminishes the distance of the burner tube on the inside and by expansion (o) on the outside. These shank pieces are made of copper a good conductor of heat, are made cylindric in form so as to correspond in the curve with that of the burner tube, the whole being made with the design of rapidly conducting the heat of the burner tube to the heaters and thence to the vapor chamber These heaters are so made as to be raised and lowered by sliding them in their sockets up or down. The jacket is also adapted to undergo the same sliding movement.

rlhe advantage of the heater being made detachable or removable are; in the first place; they are easily replaced when injured, or broken, without the necessity of sending for a mechanic to repair the injury. Secondly the heaters being of copper are the best conductors of heat, and being closely fitted to the surface of the burner tube tra-nsmit heat rapidly to the vapor chamber and thus secures a higher temperature therein.

It has been found by experience that the higher the temperature at which the heat of the vapor-chamber is maintained so long as it is high enough to convert the vapor into permanent gas the more perfect the illuminating power, and consequently the cheaper the light.

The support, F, of the lamp shade is made of perforate metal, so that the air passing up through it shall be divided into numerous small currents and thus prevent a strong current of cold air from striking against the vapor chamber and jacket, and thus diminishing the amount of illuminating-power in the fiame. We are aware that this perforate support has been used in connection with gas burners, where there is no benefit from heating the upper portion of the burner tube, as when the materials are decomposed into a permanent gas before arriving at the burner et, they (the materials) cannot be affected by heating them before burning. But where the material that supplies the light is burned as vapor, it is of vast importanceJ to sustain the superior heat of the vapor chamber. It is therefore proposed to claim the combination of the devices named as a part of the invention, on the ground that such support and such vapor chamber have never been before used in combination.

Having now fully described the nature of the invention and the modes of applying and using the same, We would remark that ble or jacket with expansions or ears We do not claim the jet of the burner nor (a, a,) and the adaptation thereto of removthe raising and lowering of the tube of said able heaters B, B, for the purpose set forth.

burner b means of a screw thread; nor do y 5 We claimy the application of heaters to the JAMES LAWRENCE BUTLER' [1" S'] flame of vapor burning lamps as all of these WM' S' HOSFORD' [1" S'] devices have been used before-but D' WALTER SMITH' [L S'] What We claim as our invention and de- Vitnesses: sire to secure by Letters Patent s- JAS. MCMULLEN, 10 The construction of the adjustable thim- "WALTER NIoHoL. 

